
Peter Thomas Roth
Firm X Collagen Serum
55%
Medium match
Low irritancy
4/8
key actives shared
1/1
hero shared
29%
of the original's ingredients
Why it's a dupe
- Both are serums.
- Same hero ingredients:Palmitoyl tripeptide-5
- Both contain:SqualaneHydrolyzed collagenGlycerin
- Both contain peptides.
- Both work for:Anti-agingMoisturizing
- The original also hasC10-18 triglyceridesCoco-caprylate/caprateCarnosine
- Unlike the original, it hasPalmitoyl dipeptide-5 diaminobutyroyl hydroxythreonineAcetyl tetrapeptide-2Soluble collagen




















